Dispensing apparatus



P. H. RIC'HERT DISPENSING APPARATUS Filed Nov. 19, 1938l www re E A. 7@5m m/ Mm 9 Patented June 6,' 1939 PATENT Lor-FICE z,1s1,o9o DISPENSINGAPPARATUS o -Paul H. Richert', Fresno, Calif., assigner tov Neil l i A.Maclean, San Francisco. Calif.

Application November' 19, 1938, lSerial No. 241,475 -3 claims. (ci.zal-23) This invention relatesto I an apparatus for facilitatingthedispensing of a fluid retained in a can. Particularly, the inventionrelates to provision of an apparatus for dispensing a fluid underpressure from the can. Such a ui'd may be methyl bromide, or othermaterial, having a relatively high vapor pressure at usual atmospherictemperatures, or a fluid having a low vapor pressure at a usualatmospheric temperature but placed under pressure in the can by means ofcarbon dioxide, ammonia, or other gas or high 4vapor pressure material.

It is in general the object of the present invention to provide a simplebut inexpensive dispensing apparatus for a fluid under pressure in acan.

Another object of the present invention is to provide an effectiveapparatus for facilitating the "dispensing of fluid under pressure froma can.

' In fumigation, for example, methyl bromide -has recently comeinto wideapplication.' This material has some toxicity to humans and it is ltherefore desirable to avoid contact or' breathing of the material asmuch as possible. Utilizing the apparatus of this invention, one canreadily distribute methyl bromide from a can. Thus the apparatus makespossible the release of methyl bromide from a can and discharge througha restricted hole oraperture in the door or wall of a space to befumigated without the operator having to come into contact with themethyl bromide.

In fire flighting, particularly in the home or :i5 around an automobile,a motor boat, and in other like locations, carbon tetrachloride iswidely used. However, if the fire is very hot one cannot get close toit. For most effective operation the carbon tetrachloride should be soplaced at the base 4o of the fire that it smothers the flames and cutsoff air. The present invention enables the stream of carbontetrachloride to be directed most effectively.

The invention includes other objects and features of advantage, some ofwhich; together with the foregoing, will appear hereinafter wherein theprsent preferred form of apparatus of this inventionis 1 disclosed.

In the drawing accompanying and forming `a part hereof Figure 1 isa'side elevation of the invention through an apparatus embodying the vpresent invention.

Figure 2 is the plan view of the apparatus of the present invention,while Figure 3 is an end g5 view showing the apparatus in place on acan.

the fluid under pressure.

It appears ixi the drawing that I A'provide a ik: frame, generallyindicated at 6, which is adapted to be attached readily to the can orother receptacle. This frame includes a first strap member 1 having' ahook 8' formed thereon which is en- 5 gaged with rim 9 on the can Il.The first frame member 1 is adjustably attached by screws l2 to a secondframe member il so that the length of the can may be readily taken intoconsideration and so the apparatus is suitable to various height 10cans.

Mounted on a hinge i6 on member I4 is a can end piercing element.generally indicated at i1. This element includes a conduit I8 forleading off The conduit extends l5 through a suitable support member I9attached to the hinge i6. In the form of apparatus shown the canpiercing element is 'formed as at 2i by sharpening the edge of theconduit. Instead of utilizing the conduit asfa can piercing element, 20i a suitable cutting element such as a knife or other can piercingdevice can be employed in con- -junction with the conduit i8. Mountedcooperatively adjacent the conduit and adapted to'be compressed uponpositioning 25 of the can piercing element is a gasket 23. 'Ihis gasketengages the end of the can and seals the space about the can piercingelement so that fluid 'from the can is forced into the conduit and doesnot leak out. v

To ensure that the can piercing element is retained at the position inwhich the gasket 23 is compressed I provide an extension 26 on member iswhich ext ension has its end formed as a pawl 21, inengagement with aratchet 28 on a 35 y plate 29, the plate 29 being hingedly mounted as at3i on member i4. Plate 29 is forced to engage the pawl 21 by a spring 3|positioned on a rod 32. The end of the rod is inserted through and isheld by member I4 while the tension of 40 thevspring is suitablyadjusted by nuts 33.

In use, the can piercing element and the conduit are normally in thatposition in whichthey appear in Figure 1. The hook 8 is engaged with canrim, the can piercing element is moved to the 45 left, or counterclockwise, in Figure l whereby the can piercing element is forcedthrough the can at the same time that the gasket 23 is compressed toseal the opening made in the can end. The ratchet and pawl engage andretain the 50 gasket compressed. l

The -can is held in an inverted position during the opening so thatliquid covers the opening made in the can and the gas pressure in thecan is not immediately released.

can.v The can can then be removed and a new' can inserted. If desired,the conduit I8 can include a suitable valveor other discharge controlmeans. v 1 I claim:

1. A device for dispensing a fluid under pressure in a can havingopposite ends comprising a rst means for engaging one can end,*a secondmeans engaging the other can end, including a 15 pawl .and a ratchetretaining said second engaging means in engagement with said other canend, said second engaging means including a can end piercing means and agasket surrounding said piercing means and forcibly rezo tained againstsaid. can end by engagement of `said pawl and said ratchet.

2. In a device oil the character described. a

with said can upon movement frame adaptedto be positioned on a can, afluid conduit including a 'cooperating can piercing means mounted for alimited hinged movement on said frame, a gasket cooperatively mountedadjacent said piercing means to seal an opening 5 in said can made bysaid piercing means and direct iiuid in said can to said conduit, andmeans for retaining said gasket in sealing engagement of said piercing.means to pierce said can. m 3. Inga device of the character described, aframe adapted to be positioned on a can, a uid conduit including' acooperating can piercing means mounted for a limited hinged movement onsaid frame, a gasket cooperatively mounted 15 adjacent said piercingmeans to seal an opening in said can made by said piercing means anddirect iiuid in said can to said conduit, and a paw! and a ratchet forretaining said gasket in sealng engagement with said can upon movement20 of said'piercing means to pierce said can.

. PAUL H. RICHERT.

